Patents by Inventor Phang Hon Keat
Phang Hon Keat has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8674488Abstract: A method of manufacturing an LED package includes mounting a large panel frame/substrate (LPF/S) having a substantially square shape to a ring. The LPF/S includes a plurality of die pads and a corresponding plurality of leads arranged in a matrix pattern. Each of the die pads includes a planar chip attach surface. An LED chip is attached to the planar chip attach surface of each of the die pads. An encapsulant material is applied overlaying the LED chips and at least a part of the LPF/S. Each die pad and corresponding leads are separated from the LPF/S to form individual LED packages. The steps of attaching the LED chips and applying the encapsulant material are performed while the LPF/S is mounted to the ring.Type: GrantFiled: February 13, 2013Date of Patent: March 18, 2014Assignee: Carsem (M) SDN. BHD.Inventors: Yong Lam Wai, Chan Boon Meng, Phang Hon Keat
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Patent number: 8535988Abstract: A method of manufacturing an integrated circuit package includes mounting a large panel leadframe having a substantially square shape to a ring. The large panel leadframe includes a plurality of die pads and a corresponding plurality of leads arranged in a matrix pattern. An integrated circuit chip is attached to each of the die pads. An encapsulant material is applied over the integrated circuit chips and at least a part of the large panel leadframe. Each of the die pads and its corresponding leads are separated from the large panel leadframe to form individual integrated circuit packages. The steps of attaching the integrated circuit chips and applying the encapsulant material are performed while the large panel leadframe is mounted to a taped ring.Type: GrantFiled: May 25, 2012Date of Patent: September 17, 2013Assignee: Carsem (M) Sdn. Bhd.Inventors: Yong Lam Wai, Chan Boon Meng, Phang Hon Keat
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Publication number: 20130109137Abstract: A method of manufacturing an integrated circuit package includes mounting a large panel leadframe having a substantially square shape to a ring. The large panel leadframe includes a plurality of die pads and a corresponding plurality of leads arranged in a matrix pattern. An integrated circuit chip is attached to each of the die pads. An encapsulant material is applied over the integrated circuit chips and at least a part of the large panel leadframe. Each of the die pads and its corresponding leads are separated from the large panel leadframe to form individual integrated circuit packages. The steps of attaching the integrated circuit chips and applying the encapsulant material are performed while the large panel leadframe is mounted to a taped ring.Type: ApplicationFiled: May 25, 2012Publication date: May 2, 2013Applicant: CARSEM (M) SDN. BHDInventors: Yong Lam Wai, Chan Boon Meng, Phang Hon Keat
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Patent number: 8394675Abstract: A method of manufacturing an LED package includes mounting a large panel frame/substrate (LPF/S) having a substantially square shape to a ring. The LPF/S includes a plurality of die pads and a corresponding plurality of leads arranged in a matrix pattern. Each of the die pads includes a planar chip attach surface. An LED chip is attached to the planar chip attach surface of each of the die pads. An encapsulant material is applied overlaying the LED chips and at least a part of the LPF/S. Each die pad and corresponding leads are separated from the LPF/S to form individual LED packages. The steps of attaching the LED chips and applying the encapsulant material are performed while the LPF/S is mounted to the ring.Type: GrantFiled: May 26, 2011Date of Patent: March 12, 2013Assignee: Carsem (M) Sdn. Bhd.Inventors: Yong Lam Wai, Chan Boon Meng, Phang Hon Keat
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Patent number: 8314479Abstract: An LED package includes a die pad having a bottom surface, an upper surface and a centrally located recessed cavity. The recessed cavity has a chip attach surface between the bottom surface and upper surface and sidewalls that extend from the recessed chip attach surface to the upper surface. The package additionally has leads arranged on opposing sides of the die pad. The leads have a bottom surface that is coextensive with the bottom surface of the die pad and an upper surface coextensive with the upper surface of the die pad. An LED chip is attached to the chip attach surface. The package further includes a package body having an encapsulant which fills space between the die pad and leads forming a bottom encapsulant surface that is coextensive with the bottom surfaces of the die pad and leads.Type: GrantFiled: May 24, 2011Date of Patent: November 20, 2012Assignee: Carsem (M) SDN. BHD.Inventors: Yong Lam Wai, Chan Boon Meng, Phang Hon Keat
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Publication number: 20120107974Abstract: A method of manufacturing an LED package includes mounting a large panel frame/substrate (LPF/S) having a substantially square shape to a ring. The LPF/S includes a plurality of die pads and a corresponding plurality of leads arranged in a matrix pattern. Each of the die pads includes a planar chip attach surface. An LED chip is attached to the planar chip attach surface of each of the die pads. An encapsulant material is applied overlaying the LED chips and at least a part of the LPF/S. Each die pad and corresponding leads are separated from the LPF/S to form individual LED packages. The steps of attaching the LED chips and applying the encapsulant material are performed while the LPF/S is mounted to the ring.Type: ApplicationFiled: May 26, 2011Publication date: May 3, 2012Applicant: CARSEM (M) SDN. BHD.Inventors: Yong Lam Wai, Chan Boon Meng, Phang Hon Keat
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Publication number: 20120104421Abstract: An LED package includes a die pad having a bottom surface, an upper surface and a centrally located recessed cavity. The recessed cavity has a chip attach surface between the bottom surface and upper surface and sidewalls that extend from the recessed chip attach surface to the upper surface. The package additionally has leads arranged on opposing sides of the die pad. The leads have a bottom surface that is coextensive with the bottom surface of the die pad and an upper surface coextensive with the upper surface of the die pad. An LED chip is attached to the chip attach surface. The package further includes a package body having an encapsulant which fills space between the die pad and leads forming a bottom encapsulant surface that is coextensive with the bottom surfaces of the die pad and leads.Type: ApplicationFiled: May 24, 2011Publication date: May 3, 2012Applicant: CARSEM (M) SDN. BHD.Inventors: Yong Lam Wai, Chan Boon Meng, Phang Hon Keat